The pair of gases responsible for acid rain are

The pair of gases responsible for acid rain are
  1. $\mathrm{H}_2, \mathrm{O}_3$
  2. $\mathrm{CH}_4, \mathrm{O}_3$
  3. $\mathrm{NO}_2, \mathrm{SO}_2$
  4. $\mathrm{CO}, \mathrm{CH}_4$

Solution

Oxides of nitrogen and sulphur are responsible for acid rain.
Due to the presence of $\mathrm{HNO}_3$ and $\mathrm{H}_2 \mathrm{SO}_4$ (strong acids) rain water becomes acidic and rain is called the acid rain.

Asked in: AP EAMCET 2012

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